20 Most Recent 1999 Oldsmobile Regency Questions & Answers

it.s on the harmonic balancer front of engine

The only way you can determine your gas mileage is by filling the tank then driving it down, filling it up again and dividing miles driven by gallons burned. You can't determine gas mileage by how fast the gage goes down. You may have made a mistake in your tune-up and got a couple of wires crossed. Someone may be staeling your gas.

There are 2 problems for code 34. First, is manifold absolute pressure(MAP) sensor signal voltage low. Second, Mass Air Flow (MAF)sensor signal-low airflow indicated.I dont have anything for the MAC.Hope this helps

It is a mute point because you can't do this yourself. Your system has air in it plus moisture. All that need sucking out with a refrigerant gas recovery machine to create a very strong vacuum, then the system is checked for leaks. Only then is the refrigerant gas installed by weight. Freon is the brand name for a gas that is no longer used. There is a sticker in the engine bay that tells you the weight of gas and the amount of oil. This explains, take it to a shop that does AC. https://www.fixya.com/cars/r29878326-recharging_vehicle_air_conditioner ..

The blower resistor may be going bad and need replacing. Does it do it only on one or any fan speed? I'm not sure where that particular part is located for it has been number of years I have looked at vehicles older than 18 yrs. but I hope this steers you in the right direction. Jesus loves you, John 3:16-17 (KJV)

I think you could use this manual method instead.. My nephew used it to repair my car and it's totally perfectly fine now. Here's the website he bought it from. www.reliable-store.com

GM doesn't believe in making things easy. No access panel

How do you know it's surging? In any case, about the only thing that can cause this is a faulty regulator in the alternator, or a poor wiring connection (e.g. battery cable or at alternator).

Have you checked the vacuum line with a gauge? If so, how many pascal units does the vacuum line read? Vacuum gauges are around $5. Furthermore, I believe the design is sealed vacuum only system. The solenoid could be bad, but to my knowledge it is not an electrical component. A split in one of the vacuum lines could be cause of your problem. You would have to trace the all the vacuum lines back to the source to find the problem. You would need that gauge to detect a leak in the system. Could also replace all the vacuum lines on principle since the vehicle is going on two decades.

Sorry Doris. It is the transmission is gone.

On most cars in this era, the pump itself can be adjusted by loosening the mounting points at the front and rear of pump.

Behind the firewall? Sounds like you need to take your dash off and get at it from the inside.